{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327259",
    "entityType": "User",
    "nonce": "0x413d4148e6a3e720a6626e67f25cf588bc85f9a3a787ac6529705544f6615cd3",
    "signature": "0x132f07d952cbf4f4a4188ef09df45a51966be34cee637e21c5ffa6f510a375f57b9d8b5bd84111f45d0383eb315a1a9190a57f67613cae5ea69c7c0cd64d38d51c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}