{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "101876",
    "entityType": "User",
    "nonce": "0x9e94db647520b98fbf84cadc7b8b82d08128b772a52a95368d16d67c5e5bf786",
    "signature": "0x40d688cb861448d420f36f1e06b37d75ec26f0bd72cf02991ae4c34ddd9f475129aac5330e0cbd0538a869080ab62bf411856ca313fb4dd2503237525ee27ac21c",
    "signer": "0x2298E32DA0e7c080878c6C1eAB02B255510f0Db9",
    "userId": "570472437"
  }
}