{
  "manageEntity": {
    "action": "Update",
    "entityId": "756207441",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x718d869d757e5488731c65ea7f281bb82bf6db5ffffd891a66197f5412ceae10",
    "signature": "0xc0e90faa6eacc0677dd8bbc14ec5c84f047f47ac644296607ebc68618ff991f55784a05cf24b2c4f4668a5ee1799acbe5c9ba24631d057af68826d8142f623a11c",
    "signer": "0x0bffD2D81009789917D71f317AFaC8aDfDb147d0",
    "userId": "756207441"
  }
}