{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x002415084eee0f5005b79b69714bba5dc635730939da1decffd0c2c01a8e2ece",
    "signature": "0x4afe5f22020b0972773db4719304b037b073b355eec3c96900e18ca2cc5952ef34b3855f3fc4ceb0e3a306d33c2a667baae8b82cdbcba91d675ce7ed214041851c",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}