SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1402111718270a901416a73c894f8a230c0a307bdbb9269f8e258e62bbee4c65' 
  AND token = 'tv3+Tx0mfPw/oBr87U8owDq7ObukrTBAvFdGWS/dmgI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00289

JSON explain

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