{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x02b1fcd84ff1968e5e533272a3d94c227c32048624915be9faeb5c0cfdefa538",
    "signature": "0x8c38a5d85956a84ab997dda71b53ebd1db05993c4231070e6f464a2e5dc46bd5050ce3075ed573b86fbeae0cd49290e6edac6b9dd35f9d25a32a06c3efc243471c",
    "signer": "0xAD005e09EaeDc1f5cc68D2FD06385CC236635D03",
    "userId": "944646132"
  }
}