{
  "manageEntity": {
    "action": "Update",
    "entityId": "480187765",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x98ec08fd48e220d0fc1703a815969b08a06931ab776ef33532c06513cc2cd3e8",
    "signature": "0xccb7f67251c0539dfc49e60d463fa9defa2eae606d891e7346af12057450268e046271d2a308a280c73919ed944ec84040eeb474fa78831a726634bd4b0cd1081c",
    "signer": "0xFEF2036d43330DA34e7C009d55C60110a986e9f4",
    "userId": "480187765"
  }
}