{
  "manageEntity": {
    "action": "Update",
    "entityId": "608236919",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcfa5db29d361c8023cbcc3518acff36af928bd427b24affa72d027a2c40ed49a",
    "signature": "0xf7d0baf5ac6ad59763b758e4b83120e67285d8640e528419ab47e07ee6fbf3e255624f8ed59ffd0e8d8a759a31345f21d6843066ac87879e142836196f84203f1c",
    "signer": "0x4cCEFE3ed80eB0E2D6fd6ce73FE230eB3e8AbEe7",
    "userId": "608236919"
  }
}