{
  "manageEntity": {
    "action": "Update",
    "entityId": "794985837",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9bbc5757635a4d73379109f2bf4ee4a3360fa37376624f47a0689d562d34df0c",
    "signature": "0x81cfb70e434d1e4700f840500a961b518a7cf3cf9af2df8c283f693111979dbf201f32e13a72787c1f2d194d01beb6981705b40dddc965a583fef05b9e90c5641c",
    "signer": "0x878707cfdc0962953A297B0b29fbF21606CB475F",
    "userId": "794985837"
  }
}