Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c13787592db96eb44f412045df4a86910fa2b22d5d739f085eecfae60bd504cd' 
  AND token = 'w/8JYlAvGEtIesp9x6pagML3X0KP2BEBLeD6JdtsbG0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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