{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd1908525b729a5c54895ca9749ad4a0992b707faa3f8985aefe632c46c36dad7",
    "signature": "0xc9106db3668cb2e3afaccc67ba66e690b4a2a73cbd46fb5045ff3e0222f14be6044790b26c1c1e232bf75d88460ba09d9415e478d97283404fb5dcd247ab109a1b",
    "signer": "0x80BaBdd7604de656E45b52EFA056548D7C078B36",
    "userId": "790313179"
  }
}