{
  "manageEntity": {
    "action": "Update",
    "entityId": "374449960",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x04ae878be5c417fb5ea2a1c282f7b5fb09e6925abf1ddfa0c44e0c1ff2c93190",
    "signature": "0x6085e9eaa29468dfcfb7c3b11005c3ec6f7e09bebdc03c17b19c05a49eedf4aa6d240dc6d297a730783752511dff35c1b299f6054a78bf31cf75a6fb38f593c11c",
    "signer": "0x0e352e33D5802c95523E3602aceD357C1B333c63",
    "userId": "374449960"
  }
}