{
  "manageEntity": {
    "action": "Update",
    "entityId": "264798556",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1d22cb8ed91f175000b5bbd6f15fe3f9e43b2a998d5775b909d8be879fb97f01",
    "signature": "0xc5e7a8a320d038c7f69947a6e377b91c66c34b9a3281c6b532ee016849a3aa686f752b462ada908c5422f70d15176a05a704151c70024f9cf0b2433f4284e40e1c",
    "signer": "0xE71ee388fAb83cdc5deF0ad1211584367a3DC0f9",
    "userId": "264798556"
  }
}