{
  "manageEntity": {
    "action": "Update",
    "entityId": "479039338",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc2705f375031578f5007c97f583bfd80fd4c0bfa5204f602435a148836b73269",
    "signature": "0x00e8f52265e82ec127e2feb7c3e720c4cd782a0cf71dbcb523b745703771618753bd71e8fda3b5741a292db770bbf50f480827f188cd14a3d1fad9cef4d708751b",
    "signer": "0xDA5EF39662B4ef70B52C25F33b5637165C93DE3c",
    "userId": "479039338"
  }
}