{
  "manageEntity": {
    "action": "Update",
    "entityId": "514044962",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x25501d1557c60c10380f20d6f5155ae2b3c6ec1f85aeb9652cb40d5d6a9f7b99",
    "signature": "0x5231e6285d6cc56bbf4bb83115ae8c620f1b3a74c6be579f05be59de0210b9590a97e8ce49c084931f9aca6d5e500be191df1aa8c1acc860a5e056f7c1d6d4721b",
    "signer": "0xc427607Be5AF266d5cF11c3C68b0350D713D4f70",
    "userId": "514044962"
  }
}