{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x71bd95a3388b25fc2c304adb702691bdee07a061c6b78093b917a9aeac3e7eaa",
    "signature": "0x98197130f8b419889ed821adc2d61dfbb4df76c28733d2dd07252a73c30c87ec7ad2688c6e6e26b3e1ca0adbcb194aec780e32630cc341382d0430aef9afd7dc1c",
    "signer": "0xdc63BF0F313d07c4391299372f3944c73202e603",
    "userId": "561235558"
  }
}