{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1770853",
    "entityType": "User",
    "nonce": "0x80271cbc4cf3af2a89c01e7ac80a63f69d17f33f1d7a0391de9002bac6903b7d",
    "signature": "0xef8d64fe1dc191b9140d6e093b03cf4897ecdb7d6c7c4f3d1b620b85d0094bea6b57b1efca8a180e61ddf97b171bde9226ba31c2c0b616267f75a8777e037a8a1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}