{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107750",
    "entityType": "User",
    "nonce": "0xa87f4ba336fac260d0a52198f41e8bca72b62020f06a25386c9e74a2eccc592b",
    "signature": "0x8cef23d52510141b9225553a8a68fe91b3b2dc66110608bb2d263aedbdd162d7151d9a6f28a5b312b426235c17d8d23c2a27ad798f6d17f91f618a10d5bd46c61b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}