{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318",
    "entityType": "User",
    "nonce": "0x981666920bd8284b39da5a0427f6ee39c8a4886c07a888ee05316aaad450bb73",
    "signature": "0xe45b656400d754d5aa5f22e06fede19273207d4dacfb0eec8c4a2dc102e708ab2bf78ef4abab7ec1615129bcd4118e9aab5461c9571bb1628c7c172785f95f5a1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}