SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '1e11cc6d46f41d2f9adfacf34907c634754cc91dc68b3d2ee255d2766d777111' 
  AND token = 'RI2iZ+PZjj2ijvDbK8+ktpA4AHAYshQbmQWDOF+2ZBY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00008

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}