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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c657b3b54796229be6eb90ebec60a4182320c119a25189d95267ba7fa22ea285' 
  AND token = '+bgvxprJkqWUvRkXNf2S6CmUb1FxXAMuDxJZAlyWQa0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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