SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '172df511e14f7b9b3cd4f9e1418dc9dba7080e4f3822d1a45f791696cc663f87' 
  AND token = 'mjIGT1vOsYGnzTMBdO6yFHi9CWH/gzvRnHDCvQz5ZHE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}