{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x787a338da57ddcb29f34274983fd4d6510cecf2fcd0b6f49bf42001c22f446c8",
    "signature": "0xac0909db843f6ef74c718f1c687da23ceab547273a1f9d1c9e72207bf5c43ae625157c54486a5df845a9320414456e4f21b24a380a8f0ddb522e2dee553789a11c",
    "signer": "0x36897D126bC324C3c32Df0bf68030A63c20c911D",
    "userId": "389274703"
  }
}