{
  "manageEntity": {
    "action": "Update",
    "entityId": "354024696",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xefe62381881d6a3253d2c546a4a130b526be6db192daa517ebfab9ff141a3399",
    "signature": "0x0745d9e3843003e92f032f5038f6ca23bf42fe338263228630e03fa8b1b297e332bb952642c4c9544f47c3518ebe1fe0cb80332f565c870e479f19ef0984fed91c",
    "signer": "0xAEc4BA229696a4DAe2125cD32943943AaCa0CaF4",
    "userId": "354024696"
  }
}