{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1418885",
    "entityType": "User",
    "nonce": "0x29f81a87b79b955de14461e84f6657b28ef2bc443ff5085c46a4209bd47b7f4b",
    "signature": "0xabe92ce60f3fcc161305887b15e022db7c08db0259b1dbdf7efa85fb2ab8900b3529b995b92cf97b8f999be27ab00dabcc5ae4a9421cb535fc4aab5a64fb57b61c",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}