{
  "manageEntity": {
    "action": "Update",
    "entityId": "610012488",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x43eb27f46212e007570a927b008e730bad78190535fbd8c14ed0ff161f770a6d",
    "signature": "0xe885e854882d165158f8c7c0b5b5a5d0d55f80db769de7979bfc0ad21e3b5b1e40eb1ab1efbe6e17a791c2f03f733c8efdebbe3f0bc72be60d765bacb0dba6a11b",
    "signer": "0xF049754866a5DD0b02f641717091c62055b9B0C2",
    "userId": "610012488"
  }
}