{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237325",
    "entityType": "User",
    "nonce": "0xa74049efcdff1bb3c6592334b5443d11a6f10ae183f458e5ec7ce393a9dc77ca",
    "signature": "0xd093e7232b29a183387d642831c04066b5b47624f5efd590db347871aa4da11044b89a2c2c9606db214725f4dc58fa840c456c25d42575446df1e862d433c18e1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}