Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '207b6f43ddad517aa8f5a530a02105352b7e5adfd840c45a30fcaa610035ae59' 
  AND token = 'JtHht+I1GTwi4/H7oUR4Bmu8dk2vhRmUWihPkda5saI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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