{
  "manageEntity": {
    "action": "Update",
    "entityId": "75683930",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf473f9957c3133c86d7177c70b7f66f9d34d5d27db27d4ba813dec9e041f4a0c",
    "signature": "0x0b2de77ff0f778da3b7a8590f678e0dc478fc3bb6046981382f6263a6356a3d8077e27837ce636412e4e0570b942a58c624b0e57ebbfc1851c88ab65f691ef841b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}