{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "85509",
    "entityType": "User",
    "nonce": "0x315d5f3eb0fe8a8a73e108e04f76f95000bfd7238366f30de9fbeb867e73f55a",
    "signature": "0x53d2b52d943f6929838f64175c1426b652ac3b09efb0e74c70a2c33ff665a69146dc63c7adf9225c4d5ce66a9d1bda7cca084b6c4502af6b1bbbe68578d7d8561b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}