{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "682798637",
    "entityType": "User",
    "nonce": "0x9f22c2f18f22f9a9fd63ff8544551e99c18e695e583688e825a040e2fbf5438d",
    "signature": "0x6dfc8e4caf4abf57456f9aaabb9e80e36d8f6351ff757b8a1e6ad40adcb812b871c1de22683f6044df254431a0fbb27a16cdcb7a624872215b63c7e14ff2ef131c",
    "signer": "0xf03E2eb658f4057Ea4255CF34BcE6009938B86f6",
    "userId": "904522318"
  }
}