{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "188199",
    "entityType": "User",
    "nonce": "0xd11b839242e09b2e81c7b72ff57bc318400f4a4370af82a9eac061b5ea521c67",
    "signature": "0x9e4617a9a03987a17025cfaa24e4a7f177121ff77afdc5304dd8f2365af1893652b129d6b6aae15a5a539c47a7fb99918773e23d8d7fa4824237b43deaba3d201b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}