{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994858715",
    "entityType": "User",
    "nonce": "0x10bfe89cdf8ce251474512fcd11c0eb08de59f70fb9883b714a1fa46c54da033",
    "signature": "0x6c7b50b12463ae4fdd4869653b48e2adfdae8294a9d71f723472fa9b7c179a600893ef1d0d590bc7914d241e3799fa4b9344345db8d84fcb17510606ed4ec9c81c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}