{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "537944538",
    "entityType": "User",
    "nonce": "0x98a8e32314dfc717d4a8445ff40dc3c599175c9d76670c6a68ba3e814d551387",
    "signature": "0x47b5a98b27f5f7bdac9142a87b80072395a015279bff97c28c633888fa2dfd8e609c8fce4ae92b1b5f3baf69bbf88cf45be29c0a4a24a406ebbb433c73ce39901b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}