{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65771",
    "entityType": "User",
    "nonce": "0xb6b8ca2f9afe11aec45fb61247047e94a1ff698a3bc1d2ddef96ca7bce1f2bf0",
    "signature": "0xa4b336c6d5bbe974cf49e6c50d86293deee63e872b0d13118149bb9987b19614267c08eea9e89fdd22a167fbeb85470d63ec00a948763f45881a9ff91d6001871b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}