{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228837",
    "entityType": "User",
    "nonce": "0xd9680fe5dc308ae9208c0b345297ef2c5a515e94c5f34c22c4f357e86425c9a3",
    "signature": "0x2195a40c7c2c32251125154eab15d28906f64cb846f9d1f3f3e1741b3d1539860768199eb51021cab663a35fd87e13b3c29e3d5a3bd0bee5ddbae57265ba3dba1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}