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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22facf8b2f55db080814d8be6e762f95a45aa107d1f237f12ba4c8e57a580a83' 
  AND token = 'xJUQ/Aoyxf7BlLX67piOr81kiJfxylOEpm3Z4qEkmes=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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