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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '77145f97c4a23818ebd857016103df7cc70f985752e29ff130d1c498407205ee' 
  AND token = 'nqmtoreTz+UtNjN121gr5nG1iJwAaYXaacQ5177MjXA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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