{
  "manageEntity": {
    "action": "Update",
    "entityId": "139313957",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0a9677bc08975d0170d0670953bc31c2d91d7b3a4ec4690a2ef3daa94307b540",
    "signature": "0x833744b05582ad04b4dac4ea78fd7907a655b9f38bee1099d4a600dfc52ade3859b10e4fbb9a98c64434dc11eddd84fc1bd42586064ade7bb000bdd38ca537c51c",
    "signer": "0xa98C9dB10EA78ACCb64bFb16A1287A152d27d5d7",
    "userId": "139313957"
  }
}