{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337206",
    "entityType": "User",
    "nonce": "0xe5632dd4e030d89e52bde7709e52a74b5af4c2d190fd1b66634c3377ad14995f",
    "signature": "0x8a5678c1cd435cd04bba5007c547d4964c337179229e40037ebcaeb3c77df9ff57364134efcfe9cbf7eef7cf58a7c3b167db9f88731c9848a63ca4e552dbc7d71c",
    "signer": "0xA0a3b0643c7D9Cd8AE5388d6c2D6E46b6aD4057A",
    "userId": "980741763"
  }
}