{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "223006908",
    "entityType": "User",
    "nonce": "0x5e49e90324b95571328080eac569da6fa1f5d706f7a816fced04d18b4eefd9eb",
    "signature": "0xb3447e43656316e334fd32b85bd55fcd91a64b602c7d70d8bdaa670ecc9a967432a9fe123cd44cb06248f7566df9b3178e41df3cbba3ddd78d6549c64e7afccd1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}