{
  "manageEntity": {
    "action": "Update",
    "entityId": "817964210",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc20f3c5c9dcf3acea378977352bc65c1f798f7c8a05233206f942878a9dfa7de",
    "signature": "0xb2f2176780546688e7e76832c3c376dab6802e087e4878c16bf916cc742b8e41591af37f6f0273654beceb9d3118b364a5e64d3c71ceb80bc27b795ed4e667d21b",
    "signer": "0x095a68b9D98ac351Fb872C4290e156751C9D7CCE",
    "userId": "817964210"
  }
}