Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9af9c34c8c87d23197f768d6ad1c0b9591c4e35b394c07730e29c6e2cdc5b700' 
  AND token = '587rPD3ws2uX4H8vjK0yrAs/QFhY+x8t4nBD6pHJ2c8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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