{
  "manageEntity": {
    "action": "Update",
    "entityId": "598390311",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x228e10e0bd04c3112d69b7e7d4baed5ae62747eeeb4ce99851fa97f5425883c8",
    "signature": "0xc67a5ab2b94769d60317670b7312648a22cfbe66d7000150d60b82b092014ef86087f0ba85f963dbab9365f412ac23a51362346eb2f5367ce93859848eb76bfe1b",
    "signer": "0x5B68F7F5f771Cb17Ff515109D1eFbcA2bE16Dd52",
    "userId": "598390311"
  }
}