{
  "manageEntity": {
    "action": "Update",
    "entityId": "325554867",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieramcw6u3cd26exf4pvx6a5mspp5utcp72knmtfxc3gi2r4ewkfj3wa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":918542499},{\"type\":\"playlist\",\"playlist_id\":1723351475},{\"type\":\"playlist\",\"playlist_id\":828372839},{\"type\":\"playlist\",\"playlist_id\":1805615711}]}}}",
    "nonce": "0x920372403aeaeebb9835e2ea8b59cf060e0ef3bbb32e9ba2f66db0c128190638",
    "signature": "0x504cd5db842a0b56c745326536072bc190eac98550eaf853a3eedd01755ed5807421eea622cb79b5487224297bae9d46fae68457f7d6a3fe5bc3a867cbbe35fc1b",
    "signer": "0x4b402dCD6745d20b1A6e12626A6E2b97c8652E37",
    "userId": "325554867"
  }
}