{
  "manageEntity": {
    "action": "Update",
    "entityId": "458052196",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3801f5334b7f9873019db63523415f04e9e0078a09f1e9c4a684efe04586aa2d",
    "signature": "0x9a31b185ab55860413ea38d75588887e57990812b6332595a8891515d5da8ad560f3f774b28259936089788101df5fb638671cea03eafcb26a41e6a2989ebaad1b",
    "signer": "0xdA70748555453bF7Cdd9F8abfe38857a5280F758",
    "userId": "458052196"
  }
}