{
  "manageEntity": {
    "action": "Update",
    "entityId": "75683930",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierammeazeq77cw4mu4c5mw2svqaehvywpul2pufl33m3e6ahppd6kdq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":694850242}]}}}",
    "nonce": "0x9602ac0a73414807d4c207577db4628755e36fe6142df7701a2af5ef80a48ec9",
    "signature": "0x9ff9eb5ac854dc686c6c16ca10c27277dc515415d1c44e681524bc8fa03767f61387dc2b9a87fe93ef15fc5d2fea3b6f8b920aae79c5354a8fbce9e25c8f0cc21b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}