{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc47f6ac2b859dea8b065f9b56b3b4590f23fa436f1077e23d00dc774fe18bb20",
    "signature": "0x7758ae4be249096275e8936c09d7c99cefa2873faba6b6c1c8f0e6c2e54128af1dcf0e9b6b3e2b27d1398fd7e5be0c780c1b9ab33373d831b1386392d71226d11b",
    "signer": "0xEaeDdB5f18CEFf9Cce09145751aA90e015150947",
    "userId": "335674615"
  }
}