{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66005",
    "entityType": "User",
    "nonce": "0x1c1a1288823b4e47760664bba44d8f2a73f6c25f30348e87b87716c16a7e4a62",
    "signature": "0xa52d6e041e06dcd6c3cbc88da0b0fad83b1a332a70b132ea9a0d2466c3f2ff6e360665f8b0983da9e04a7f69c812f0ccb6d42f48fff115a20660fc3a478ca9ea1c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}