{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0x100610bb4d04f942dee8f6188032f16422f3bd546a4c8d27bb01aaa4d3b76b12",
    "signature": "0x19f7bb304312ce36fe62e2c1da8bee2eb45ed96fc2dd3532e61ab54a3bf3db486e0bdb8400f0401b5fd0b065e58bf074d0b9fd2a7bb0b2524ad2bdc9f603392b1b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}