{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x905d177e811c5427e5d7bcb6849919af279870534805644ac90b165373bcedf2",
    "signature": "0x8414cafd71d51ea91f290854cb945d1b86f110fe484456ff9569f2b6f17ab0e66e15b887ce09a3a95202ad5f540c507b2fc3817b9988a7d46936b580bc685e431c",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}