{
  "manageEntity": {
    "action": "Create",
    "entityId": "1528244005",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"testing slug generation\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Electronic\",\"is_unlisted\":false,\"title\":\"SlugCharMapTest\",\"owner_id\":75957271}}",
    "nonce": "0x0590ce9f121f5f864b378172dd390110254025f0d5690055f27bad3e1a3fc9cf",
    "signature": "0x8b93ee11a2a00656d1434890371b3734b0660cf91cc9cb534f005a7a7f1501b03745bade37921d636379798fd514118d1fdfa5a782cad4e6b5c31014326309711c",
    "signer": "0xAE6AA7cc1cAA0f0f2993acA4BfF594Df2EF6D82F",
    "userId": "75957271"
  }
}