Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '055ab98878e24a2bbc6abf51a4f3ccb6820f61da5e781c4156913f43ae6a0b32' 
  AND token = 'H5M7cOOHgiliOek+HvWEt4BaMel2FCTUq6L3Hkl4aLY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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