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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '061f43a23983bac0daf9acd49093bf0a51f17253eb06ff2ab7f504c5584174f8' 
  AND token = 'aRw44nJFujEP5YjOu4t4J/ijk76hU17NTWCP5ku9eS0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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