Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c490f11d34f2f7a00adc47957e80ef6d8b410ff0edb130ce0dde235cb520c68d' 
  AND token = 'VDTw+wJDToZPUNNHYXP4PsYYygFMX06RI6Hr8HaeKiM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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