Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'b25c6d4feb5248b7b1b0858f0e46b54040bbdcc3102523541ff340e7fa593d2a' 
  AND token = 'OHRI4ZY4KjaI4JIKRyF3phPbYwSogyw5SdZwPhomuIc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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