{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19702",
    "entityType": "User",
    "nonce": "0xc43e0e10a29a31532e9ab7c6fb0b20d45ed6e3be7dc2f1732186d6f1db3b2d42",
    "signature": "0x0044a30b7a51bf350496f1ac06f4c0a2c18918b2c5f7da55ce6708c40e8d64155aa6d9e51ceeb8334882d5c418955db3a0c037ac3aa3fda2423d42fe6b64c3711b",
    "signer": "0x9c3860443A17b3326308E6E90E9cA7835460e0b0",
    "userId": "898210232"
  }
}