{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "965637",
    "entityType": "User",
    "nonce": "0xf90ca4c48749c877fa5c95daf560a060f6c57ee800d15d3e0a95f98a5727bb85",
    "signature": "0x02a667759f7432c065db5dbfb6f9e5ce709ed073564bf97229deeda24ba623fc149a73ad7f927fc5f77f22ca8ee8f03d60cd1036c257315471eda6c5eef8c76e1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}