{
  "manageEntity": {
    "action": "Update",
    "entityId": "328056745",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x94ad71b9d4ef1841b505cead2b9adf32d0484bbe41a6f700c1ab1b1c9ee60596",
    "signature": "0x7a0e4202de3d33453d860fcedc4551af0921bd7240a4814f096c8ab4b36da1bc3a38f738e24e262315c8329fd01e6ddc60ccfd5f0613ee583a3b2082cfaa71541b",
    "signer": "0x75d782C5a68f76DfA69c426479B6ad14383D035f",
    "userId": "328056745"
  }
}