{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "615238536",
    "entityType": "User",
    "nonce": "0xbc1b0b53656076b1293b526b76aadc78c339bd58ad1ad5957fa25ddd29be1f63",
    "signature": "0x577df5985d49ca94012c56a72f842977315d7fd4fbf4c645e1396cf2b3ae59094752dd8974c68c11f4f1603b0f110d3265f536f3804cca9c612f9f08441f1b3d1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}