{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386745392",
    "entityType": "User",
    "nonce": "0xaff12f4e3e0ceacbb25c939a7e4d7c5448c124b818357b1b22233a0f3db1f120",
    "signature": "0xf0d5dfc2a8930726d144db5b6427f035d58fad191575cb724a9445baa05e999324c9e30e0458633f76c46fa5496ca089fdb5296e38eaac307b9fe17524afe12d1c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}