{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66376",
    "entityType": "User",
    "nonce": "0x7d29947c48b0633038c9a57f4f51585df5f97d5a9be8f0af3c4f018036876377",
    "signature": "0xfe2c321bafaa81d7e51bd1f167650ec785e8d14009393cdc426439cb2cdd3a60774cb8b7ed70ae9570a325de09e3820d934a454da929e21b7af0cf4203cf2c4f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}