{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae7a1583dd439a591aa981f387a4d4b749ced4aeefa68423bef1bce154444be4",
    "signature": "0x7a8c9041d91736c4925dcdce45a528996d55ee41e8ac0cdf624291749428438d1578adab44d3ce1ab5eca35c5060339f701437076cb2b35a84b3157d6811b5e21b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}