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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'caa071d2b0ffbafae435f73a4d24c2f4142ac67f3ded5787f4261bb81b555867' 
  AND token = '/H0nn+h+TDPhimw44Nvjp1IWHyycKzsZUJH2U4fw2bQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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