{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18115",
    "entityType": "User",
    "nonce": "0xfc03e287fab768d29693dd4103808e840707194844f5d3d8b6ed295459858bbb",
    "signature": "0x9dfc0a831d3288f7d5a5b119e2c571df9df8caa5cce0b8d0b8c7e1d5e1ab754c0d97595d2b4dd9d6a1d1c96f5da1bcc999159f19e81866fe493cfbe7561ff41a1b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}