{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8a20f1bf5949c61420b674ebd4c54f1702c553893e23cb69f2c99e400b507f59",
    "signature": "0x6b85ea6d875c3374a6139911345da64b1b38292b96ffd1ee795e89dd239a8a62762a2af88d9b9e0d92aa9727dc019c2202d7a725a6ae444742d7ed1abc95373c1b",
    "signer": "0xbbDa7Bb7f9173081a803c97930067bDc14541538",
    "userId": "331550383"
  }
}