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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2222f8ad54235b6261c492935bc3ce44545bd75503cf5075c5202bb0b3024d5b' 
  AND token = 'MMYhOh3PksP05gK6L8TKAGGYgRMyn28vhKPHQ8FXI6w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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