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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '6a363d5afd267b9af5f17b938eed9f7bd396a7c5eb2b8b14eda01eef5f44fc34' 
  AND token = 'fA10vdHunp1y22LSAlKLgtXfGYDWN31ynWVL/ecEbIs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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