{
  "manageEntity": {
    "action": "Update",
    "entityId": "75683930",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5481cbbfab178c0738bab77c10c18062fabcfdc841d3155b56acf8ae66c5ba37",
    "signature": "0x50ef1f3c24e9eea6338460ca6f73fdc8ae3c7af467f1c8a4027f1f3ec0871f6a7a2217cfa8499a8b6f8acda409c63a77d6bf157e097d0aad043a75dc7d325e841c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}