{
  "manageEntity": {
    "action": "Update",
    "entityId": "75683930",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3fc20e6719f3debcca838ce76e78ae21adaa597acb14ced4c4177de880b07953",
    "signature": "0x32c17d6180808c39dbe7948c158495230503a817c94d97259f9ca3feca3476d37ee1610b817ff577865d1d623f783464cf64652d93a50bdec1129c4d50d62a611b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}