{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38437",
    "entityType": "User",
    "nonce": "0xa3cf716e9e54378ac189574a5fa484b5ac146eac514eb95fefbdedcba7e9d477",
    "signature": "0xb919f7919951d9ceae03148c131cf212c9b9c0cb0d255cb639ccb1d93003bed56ff547e01040a003cedeff2c0e7aaf64ba4af9a7cee8b59b689b5aa59c3e92d41b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}