{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0xd0886e33834f4cfc0e74c398b7ac3fd0dc782bd87dd81fff89cf876ff7e3c547",
    "signature": "0x1a1f099334cbd5f110bbfb589043e0b568d31d4d502ea9966d62b5a298c265cf0c620a8a5e9716a1b6731fdc36139af8be191155c1ae1a0a253aded5f206d65d1b",
    "signer": "0x659369840b4187b335c35Fb40f1D92A0f4f85177",
    "userId": "810969269"
  }
}