{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe339b076ce1c678422d31447c2f282d4a73f4f3221a009b90ccb9ee5b760acb0",
    "signature": "0xc11cba376ea427e3d0df11174e1feabeff0ff6d53f8f81d5f92db1d40cfe9b216a288c9451e145a84131123b6abce7c220b916851833631cde284d696a88b5001c",
    "signer": "0x8441C944f4f0a2754e3BFa1A8b25068410BEC05F",
    "userId": "592180678"
  }
}