{
  "manageEntity": {
    "action": "Update",
    "entityId": "837557269",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2e2e42b3ce67c08fa88aa51a6e59f009bea6f158b4d88a6d0dd815e7794a71c0",
    "signature": "0x35395fc11d0374dae33d8350624fb81c22108b8d0dba372b9a227e13fc9135bd1f54cebf52fc9be7c64b6d8a53d01e6e01a0af602621c42a7cff2cdf875a210a1b",
    "signer": "0xd8a65dC2d71D6caDA0ef13A84908F90052c425DA",
    "userId": "837557269"
  }
}