{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x36d418784c67e0e07ac13aa3cbbabcd59577cb84cd6edc53900a8a1c3cd37736",
    "signature": "0x0f45627a3da606b327d4e0ebf89734c87f5b47cdda6e753bbd6685c77a4a103515835407939371618c682c85534df8de675bd5751b66f865c307664401b212741b",
    "signer": "0xD3a9fd3A65024c2c55f4E5A340E39C9CDd6BB17c",
    "userId": "628680085"
  }
}