{
  "manageEntity": {
    "action": "Update",
    "entityId": "964025330",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x43651c6b09e4e21bef070d6bda597cde13d5a76aae5c0fb50abe39a534e3e82b",
    "signature": "0xfe964daefb23a6cf0869fb3ff57881bc3cdaefa2954d79b8503848687fe9e4e33a87f70ed035c2ff7be37e3b9760298843f04e47bc03cbf57c801cbe945ea92d1b",
    "signer": "0x18e80443A33c763307bac21D4Ec54B381DFC58cA",
    "userId": "964025330"
  }
}