{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28288",
    "entityType": "User",
    "nonce": "0xef6b52b0d17a89fe1a3b3ea5c28242482544f96a9db0bff20c8568f862634f8c",
    "signature": "0x437a9d85c13a5c63a84344e84f0752ba2b85a603f9ee91f664b5405781ec8fb43cbf87e5413b483008c0208bb94661455085801105e44f35aaa83b86380988171c",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}