{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "524927240",
    "entityType": "User",
    "nonce": "0x8cbef6239df8e0c0e3dda11b0a69d3022ff0b49f0d5eded5f9ad5df61a22e657",
    "signature": "0x4313f4861449b1637faed6d53e0f9bb188fccfa7c42eaa26bb8cd285369639b66715dd1c9776eb3fe49cca8a0ed5fc4ca53513fda0c19706fbc1819e76480fd31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}