{
  "manageEntity": {
    "action": "Update",
    "entityId": "644998197",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x735ce7a8d9d28fb88499a229d84e982cb57cd2156c4182b565ced3e74517fc35",
    "signature": "0x9e03f870f3cbcb0f56c7bea6979add97d61fc4cacc459e1652f87725d2e991bb3701a5ed07e6df3620ddb91e681a7b7ad0dfc6ebc2dab5bd25e4275ae0c244d51b",
    "signer": "0x08d8b4B98a4aE10Ab809C1409291ab0c1E29D746",
    "userId": "644998197"
  }
}