{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xce25c70c954d98fa5699d286ae911635c54442d26490ecd924fb473fa8ee6258",
    "signature": "0x2fc744de2b2cb3a92a66d42eca4e815eda20b4d28d3e9222634fd74adb18b06c7077d7bfdc516ab7f68d7a95ca1c66ffbc5c7ee1f74232856fc388291bacf0ea1b",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}