{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0xd60bb99c8713e8f9d4c7bf380dcf24fc2cef888a1676ea3668ea3c41f42a412f",
    "signature": "0x2ec5e553780531dd27ea0c1dd44e964ba0ed2f720b27860b218e2d3838a0d2c814b43609777605137e1ca82e07231b2620da50cf0f9be4ec7cfb57e8032838441b",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}