{
  "manageEntity": {
    "action": "Update",
    "entityId": "894993535",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe858573f1fe21ca1b0ef3bcb58e2162f20a9b96bb773f05877bcb35e1f864a95",
    "signature": "0x28ebe90ad505cc78b474a9bb51aeb3167b707ac7c9667ffcbf1f3916df564f0d3c8981299252c43bbdf6e48be4854e216678f813ee5cc068eb850abd355ddf391b",
    "signer": "0x002031D0baA51041F3473B710E9530fdef5502bE",
    "userId": "894993535"
  }
}