{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x079ef141f9a80a0fff9121a69d819a92a0e156e9638a0be2042eb616d5bb1991",
    "signature": "0xd6a0a32f06bc9839311c67c095832b2eaa14b915153544538bee4c9146a21df25560c996eb69532d7556303df8ce59cff9bb0f6e1893a064e733b3889b5f1ca81b",
    "signer": "0x1D8cB3Ecc9Cd7e23dC2aa1E1A07F64363Ee9599E",
    "userId": "553152525"
  }
}