{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327868",
    "entityType": "User",
    "nonce": "0xeb755424257260c2ab44d006f27839cae31068f5c1d3bc29eff30e039956c922",
    "signature": "0x1086569d5d34bc59a934e3355590db696510fbe0b68f506951ebc69e2cbbe5b27d5bf650e09a5652b3d69e684bf1fe39e343864141024580e905aff49221e9611b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}