{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142547",
    "entityType": "User",
    "nonce": "0xd5b0f00c5cd90b261338715de70b90cbe5ba2b597f94bc195082b509b53987fe",
    "signature": "0x27a74043b4533c6dd50ca3da99b8c9d5bb62bf21abbad5daaadb373b142cde641a7e185b27cb0e7ba778774cf26c46873b0681e0c6a7a215bf5684bc1ab5264b1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}