{
  "manageEntity": {
    "action": "Update",
    "entityId": "7338909",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x439cea6d0ae8cbb9717f4591c05d6a38f3decf829598c5681e4e3b0a87440bb4",
    "signature": "0x2da687f8a6c911c0ac1c5e12317b691420866e5435ae7b1b6866517176c6a931550d80ede21e04cc35f745d686291ac38afc5ac7d10ae7270019ddf70a1358741b",
    "signer": "0x29BEc2675DD0a0e5034749E3958D2a0A78C296ef",
    "userId": "7338909"
  }
}