{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0x276583f9d5eecdcaaa55bba782535dccaaa81a97f4227ed0cc27ed1160718394",
    "signature": "0x81b543a266e98ff9112c204bdff6502e66ca0f4e1d4424c9c9d789fa940728cf4c7273d3b809b73022680bee2a063491d9a19487d8274417d8408e88e74f0d1d1c",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}