{
  "manageEntity": {
    "action": "Update",
    "entityId": "672217540",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7944c98e817932832703b09f4268c98972a77834e3b2fc04a3f4c4dc16ab26d3",
    "signature": "0xf5819e6d1bf0cab3be32c319c91d92a738898597868da6f1dc7fa9e8cb47e4ec71e2f1c4b9f5b5f70c4b62a3d2fc37719b487bd13bd5783b5acc79b858795da51c",
    "signer": "0x38b82b1Cd46eCBa50DB7fB20B1FD260725058884",
    "userId": "672217540"
  }
}