{
  "manageEntity": {
    "action": "Update",
    "entityId": "803095971",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierafplzgbiym2ryejghzp6j3rqb675qrdaqqb6ujs2m3vf6z2rodfda\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1173605407}]}}}",
    "nonce": "0xfa5c60c60baebaddf3f74d91bbe536992fd4cd065fbab4302b057015b394f222",
    "signature": "0xfba7b0aaebf1c91d5cd8b40a6355a144dceb7b3a407878ddcf62f1a25743f0743a941c30d382f05f15ef92909ec848bcf613dcb65f7df81dd4d8136bf4b9ec0c1c",
    "signer": "0x35A8c9b75fc06cB7435E4922f063c3519a56Bc64",
    "userId": "803095971"
  }
}