{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984691913",
    "entityType": "User",
    "nonce": "0x1cdedd19e710d451031e3420c480d9d2a5b5ff74c77f9ed737ec2ff63a1e86a4",
    "signature": "0x67f92f7373bbae1f23df493887d52b0582ccb16f73911772f7091a9d10739b3708aa47ce7f1f5cbb82363c6912917d78af40228ba2f163d56a71d608b386c18d1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}