{
  "manageEntity": {
    "action": "Update",
    "entityId": "544594591",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x60289cabc081d4b1b32cdb696e1ccf181323ee165021c362cb40bcdd72e3691c",
    "signature": "0x9ef1c840c23dec588036b9f6d66fe9afc988418cb9788d441decc95ab06aad8e70d6b798ae99d56de858a86a442487cdfe4cef9078e6bd5f63f0101da6833fcb1c",
    "signer": "0x00f05B05Bc9c31DD5734f568990aC55C78d703B8",
    "userId": "544594591"
  }
}