Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '150fa2ff9427d8ee64a54bd8b11de14aafbb7b46a1bfe6bcf5ba661c1ff2ca91' 
  AND token = 'tYpJmeCtwOr3+8J9Dv+plgGkfBWnvpA/YWCPg7fthkg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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