{
  "manageEntity": {
    "action": "Update",
    "entityId": "259985510",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3d2f38a1904411aaa48b46d53e3850f3a08da6c43a0a25fa4163b4ce565a0728",
    "signature": "0xbbdf5a926494e5bcfeb748071fe6093ee921fb67166a47d42e00109d3d5fe0d101e5c435f67ad071b587ecd83ddb16addebe576f972aff7514243724277759b81c",
    "signer": "0x2De475Bf604136d752575F3b37d24dc094663D3E",
    "userId": "259985510"
  }
}