{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301606",
    "entityType": "User",
    "nonce": "0xc37822cf62b2a12fda73857fac416f0cf3e825b3e823ac600f5ba1851adabb07",
    "signature": "0x8f7c708f99388c817eed74d8db13fca462b87c982191edb8487ce80984ec8a3a33337d6d32175eb82e7c2d87ffae60b77f8006557ece029faad4ae6added9bb31c",
    "signer": "0x74cE10865978883B54924eF5Bde16e92D31A0d49",
    "userId": "483269989"
  }
}