{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53717",
    "entityType": "User",
    "nonce": "0x2ad8f272b5507240ae1215fdee0050b5add8a66e4e445afa93700b77f7e5c330",
    "signature": "0x973f8cc897f1dd2a37da7a2d75a0e4e833ecd71f70536a547170152faaaaafed0e443a5350b3b0f852e24d80dddc9fbc80e3ed0a9dc5b0e5fd36231430e59a1b1c",
    "signer": "0x5aeCC1AFF37a5BA2FEE40cF4dd6357A86DE23D42",
    "userId": "950958674"
  }
}