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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f47bc6d0b3000a7b028caf1e4b3a5bf8b8a87f5967edfbf6ef37fb9bfc682cfc' 
  AND token = 'drwfnvvLUZm2SI6A0bRYQ7DAEFQ6Ae4Z7M6YUfCUb7c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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