{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xf4d2d6baaee64e882b626dc4b89ec0493ae0ef08208721c8a929b05c96f0f235",
    "signature": "0x65425fdb7c70265887e0673e65944eee1feb72ffc4168cfd8158c9ad6183f32916c9f0463925abfe039657f8e79a9f41f3dd752f98a78e61aa91916a2c03e3cd1c",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}