{
  "manageEntity": {
    "action": "Update",
    "entityId": "467398673",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf7809ed642f6c6d37a5be8ef05473b4d2ab22dd4c0581dfb4c33706192be2c63",
    "signature": "0xd27b44e6dee8036642cc46bb239c7d254f7057db8284fb79ca3c98545824b38c19473f526875f701c204e500f630c172094f74eedd1dfa3f6596b05f75e037311b",
    "signer": "0x46CfB51Fda6B1829B8aF13F7d99133767B3F3b17",
    "userId": "467398673"
  }
}