Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '09266a3bbbcf17cb3527e0e2cd178dcbd20656f5111d260c68e92e6bcdfd4ce4' 
  AND token = '7kveltK5SxjWwCpFd91WePDOl5fGc0p0DUDjpTJp28A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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