{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "893863695",
    "entityType": "User",
    "nonce": "0x7dfc0413a3ea8703097a5b9fb99b4fe1151dad3c3ba0cf7cc5a401f07d1c8144",
    "signature": "0x5f1a4e87cecfd09db32b7352a689cb3a8f9cbc152e690ef7d17a57ee9ff7cf4d5bae839027bdff6d92054a359dd6b2df55d410439997fc93adc3d9d6f20e2b0c1c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}