{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x03bb5a2744d7a732bc042c738a8002359012e3a97db904e505d9f1b5db338dab",
    "signature": "0xa38c51089d3511a1f5490ec8d0cf66ff369547a082a816e53ff0758b84ffa5b621873a2e2eab0b6d4cdd4aa6a949f0ce117f2e3a4895627de4f33288d33e76431c",
    "signer": "0xd46d0175A09f261C4735A1F872Dd6B3265DaaE00",
    "userId": "486047998"
  }
}