{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828882732",
    "entityType": "User",
    "nonce": "0xd72ff0754558d1a1c02285eb7dacf57070f1709ce6d7f95219681025210f6045",
    "signature": "0x734a699a60e668836fb15e7a37f476f56bb7849614408d3c273d0ce86bed564e0b272f2277f8c331b42d816993e66127aa763badbfaf703a5780093605e432b41c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}