{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x524a5f17b889daa08bfa0bfac25d71c5ec58a8af2a5315ab1a1858906d22d8ca",
    "signature": "0x6b9b9b8e98af0aa0e07d777472cb59563a76e5f7cbec91e4d9dee9f0e80c4230672a44b1a504750631379e219ce6c4cba9fba2eb7a2143d8ca5f629cb97fcb8c1b",
    "signer": "0x215b9229F9cd650Df3C8D6f55633614FF81314AB",
    "userId": "646988261"
  }
}