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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5c02ce711e0096b3cc93947cd43dde910bd654388725c4a526a9faa8dc88e3e1' 
  AND token = 'bKT8ZwUUicD+q2zOMVoAU2MfA2LByedN+M5mZ1F4z3g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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