{
  "manageEntity": {
    "action": "Update",
    "entityId": "609288347",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x40d09d8e2251e322c348aa493f09045f5368803f44d41b49fdc54b26d90538d4",
    "signature": "0x6bc19d27230e89f8be361b5bf5a7f43baa405cd4295ee96d4fa1b1124ffeda031deed22f3f6718e648af63060fac7c5284141fa64dcc221666ce9af5d10e91361c",
    "signer": "0xd9001a8b37071e9919311AE5e9F356B83B08dDCc",
    "userId": "609288347"
  }
}