{
  "manageEntity": {
    "action": "Update",
    "entityId": "961912866",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8d900790559b463813395470a73e25969633b77cb48ca2c3088b3021b132118f",
    "signature": "0x6c06adad3b9221f86149d0ef689b51524fcdf90a4cebc9f7faca3b19e8ef62cb1b46ab3859d2d460b8080b3d59b0089bd211b2e9b15e0cb4750f438ba7fe259f1c",
    "signer": "0x5071366AB603273E4DD5018aF6ee7e6459160231",
    "userId": "961912866"
  }
}