{
  "manageEntity": {
    "action": "Update",
    "entityId": "75683930",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4a1a613c13f4114ba38f500eeddb9b09200a7519111f1bff32a1f4a79eec528f",
    "signature": "0xf9c3c5c6e6f0b2df07360f3e365351d026e4fa3e40aabf0669a127bc690c814512379bb6f392978e5c4b267632dc4ea8512405d5343934c6b915eaac218fe1491c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}