{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x37da19e424d304b3db8bf10289f541ae11753338ef11f93af06cd11b97966a11",
    "signature": "0x73e43ccaa10110897eeddab30f192baea16ae3c248365a387ccba1c605e7032078c263ae4d417ea0802154241436cfedc216379c8a241315d77622f39bc0f45d1b",
    "signer": "0x6948e0418Ce2eE9cD054e9d4Bc50614964F459Ac",
    "userId": "415252957"
  }
}