{
  "id": "string",
  "tx_hash": "string",
  "cert_index": 0,
  "parameters": {
    "epoch": 225,
    "min_fee_a": 44,
    "min_fee_b": 155381,
    "max_block_size": 65536,
    "max_tx_size": 16384,
    "max_block_header_size": 1100,
    "key_deposit": "2000000",
    "pool_deposit": "500000000",
    "e_max": 18,
    "n_opt": 150,
    "a0": 0.0,
    "rho": 0.0,
    "tau": 0.0,
    "decentralisation_param": 0.0,
    "protocol_major_ver": 2,
    "protocol_minor_ver": 0,
    "min_utxo": "1000000",
    "min_pool_cost": "340000000",
    "cost_models": {},
    "price_mem": 0.0,
    "price_step": 0.0,
    "max_tx_ex_mem": "10000000",
    "max_tx_ex_steps": "10000000000",
    "max_block_ex_mem": "50000000",
    "max_block_ex_steps": "40000000000",
    "max_val_size": "5000",
    "collateral_percent": 150,
    "max_collateral_inputs": 3,
    "coins_per_utxo_size": "34482",
    "coins_per_utxo_word": "34482",
    "pvt_motion_no_confidence": 0.0,
    "pvt_committee_normal": 0.0,
    "pvt_committee_no_confidence": 0.0,
    "pvt_hard_fork_initiation": 0.0,
    "dvt_motion_no_confidence": 0.0,
    "dvt_committee_normal": 0.0,
    "dvt_committee_no_confidence": 0.0,
    "dvt_update_to_constitution": 0.0,
    "dvt_hard_fork_initiation": 0.0,
    "dvt_p_p_network_group": 0.0,
    "dvt_p_p_economic_group": 0.0,
    "dvt_p_p_technical_group": 0.0,
    "dvt_p_p_gov_group": 0.0,
    "dvt_treasury_withdrawal": 0.0,
    "committee_min_size": "string",
    "committee_max_term_length": "string",
    "gov_action_lifetime": "string",
    "gov_action_deposit": "string",
    "drep_deposit": "string",
    "drep_activity": "string",
    "pvtpp_security_group": 0.0,
    "pvt_p_p_security_group": 0.0,
    "min_fee_ref_script_cost_per_byte": 0.0
  }
}