{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1979831",
    "entityType": "User",
    "nonce": "0xb0d4dc4954562b060236ce13ab4d62943ee92ddc53331b6bea6ecec76d082bff",
    "signature": "0x848c9cbf37739805c146985754e85e943a962fdd131d004c8c4949e0dee28a040ec5a976b61369769dc755a30cba9c959ea64195205271353a84566428b3f6441b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}