Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '72493c77b73d0df30435dd0932dd1dfb0f3bd6872951cca4e5f018134d7366b3' 
  AND token = 'flu9DTgRvTk6Qc17BSUS3UdVzTp+rl5YeHXq47CWzwg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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