{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281227",
    "entityType": "User",
    "nonce": "0xdb3deeaddef46dd039a8e2b204f8552b0fa87eb6257ab5dc65caa4272e28a0da",
    "signature": "0x96a22ce34234c030d488c327f51d0ad3c6dda9110b53f888e18a66997dbd646d2ce5119daf02cd21a10209e8147bd5d9b82b809c5243c1540120cf6b4f39dd161c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}