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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7236e37b60e483cb9a0719b2e378dc6f66ece953083832fe99786ae3f0b5ddc5' 
  AND token = '95N+RJ21bcHjVqt5zDmrs5+M/ZPWeEC7mumRAlauoRw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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