{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xacb26dde7ceee256bc09687860e15def459f07beb407a46160c791ad8c57ff9f",
    "signature": "0x7c71b8cc90964c00ed94147cce8e83980f54d5053a2578921ed6722ac6b85f8e2c58549c5a08cbcb585161e2b9b391a3158f45f7f39c78778cdf9336d7a626831b",
    "signer": "0xeFC9B78A20535768B9d5BCd2702b853bd5C0789c",
    "userId": "333246"
  }
}