{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0056d2eae8746d857be27d4781e0ec5ec4580f869baff5ca8d648688bb00d8bb",
    "signature": "0xb2b4c9b99ed503ea55e417889769cb939e6615fca69bc852eaed11bc6a728a5379810e9d732ba0e8fb1ce3d52f8359879e5a0607ba1e296db311e20a40a01a871b",
    "signer": "0x6dC6fF5eA5461e5c55F78c88AFd9DF528eaa4Ca7",
    "userId": "881439571"
  }
}