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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '801d3c866fc02ee9d8137d0dbaec0f47f107cae344ac93fa2c1dd2e5cf5ab9be' 
  AND token = 'K/DrS00dT1euzwe2/szQJGlO1r0n/XDDbORUp42dE9A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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