{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "681864718",
    "entityType": "User",
    "nonce": "0x5d9f046c1c7155e81951b4564dd71f46240139ca6db37f69dcf66e243ca0a783",
    "signature": "0x318281ff89a94e4cc5e63d1f0e03e0aedc68d34dd68036113d882e80a947979e1f63fa40f92877b58e2c7420e366221bb836c07a5ee867cb89ce551c57932baf1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}