Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1d7ad96512f610aa0b09293b7d202f19b5be13664d49b0794b48b2282b0283e7' 
  AND token = 'DdBDnH87Prupc5WZ2kkojAmrM+G3+tk0AlpBPRMdabk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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