{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19630",
    "entityType": "User",
    "nonce": "0x2d80215a6bcdff44b8e9c497d1516e8f565d35385da9e8d6ed253325cba9d763",
    "signature": "0x02585c3ed34f9f152a1f450ebb102437db438562a19aea8f74861793da630be5214a9a7cf669bda188184f376ee02dc88afefd0c7c54d04097bfb6f8b56446581b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}