{
  "manageEntity": {
    "action": "Update",
    "entityId": "126410092",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xac7bc06d765398a2f6ccd19dcb01dc2f958f97fbef458b0afa09ec944bbbd7d0",
    "signature": "0x548b1b7db75ba497347e0dcac1924c72518a28626746e85ee944980867227d96635a48365f491b6d98ac35b6bb8573593a12fceb8170cf8b4a2633581e5600fc1b",
    "signer": "0x72C4DDfD203AdC8e1B63eC8DB4D3b9Bd81b1Bd32",
    "userId": "126410092"
  }
}