{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42001",
    "entityType": "User",
    "nonce": "0xd2cd9cd0334584adc93d08224a912de7027ca1725383a959d89239eb3788c91d",
    "signature": "0xfd985cd02ee45e8c676f066234192cc467e2b688716c9693399adc67bec77ffe673497b77f33cd3d6fdfb28cc4e087ce4144f5c1b3b401b0b9ebe04015f06efd1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}