{
  "manageEntity": {
    "action": "Update",
    "entityId": "865218773",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x32f5a584d1900290cbbfa4bf621a30b793caf08efe5cb00d660091609eb7fc0c",
    "signature": "0x30332e6118d2cebd40dedac75e9d68e412f18ab86508ee29a4a87d528df3935d7d29bd6a296212e36bca32702d3b3e0ce09f8fc47537c339ba22db5d8793740b1b",
    "signer": "0xA8801c65Fb9C8F6e0bd56DBfc22cADBf2D4aD77A",
    "userId": "865218773"
  }
}